US4371005A - Protective cover for underwater flow line hub - Google Patents

Protective cover for underwater flow line hub Download PDF

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Publication number
US4371005A
US4371005A US06/098,965 US9896579A US4371005A US 4371005 A US4371005 A US 4371005A US 9896579 A US9896579 A US 9896579A US 4371005 A US4371005 A US 4371005A
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US
United States
Prior art keywords
hub
body member
rod
flange
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/098,965
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English (en)
Inventor
Charles D. Morrill
Michael J. A. Best
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Industries LLC
Cameron International Corp
Original Assignee
Smith International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smith International Inc filed Critical Smith International Inc
Priority to US06/098,965 priority Critical patent/US4371005A/en
Priority to GB8025628A priority patent/GB2064039A/en
Priority to CA361,650A priority patent/CA1134264A/fr
Assigned to SMITH INTERNATIONAL, INC., A CORP. OF CA reassignment SMITH INTERNATIONAL, INC., A CORP. OF CA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MCEVOY OILFIELD EQUIPMENT COMPANY
Priority to FR8022478A priority patent/FR2470910A1/fr
Priority to JP15200080A priority patent/JPS5695900A/ja
Priority to DE19803044943 priority patent/DE3044943A1/de
Priority to US06/429,532 priority patent/US4477205A/en
Publication of US4371005A publication Critical patent/US4371005A/en
Application granted granted Critical
Priority to GB08324823A priority patent/GB2136083B/en
Assigned to CAMERON IRON WORKS USA INC. reassignment CAMERON IRON WORKS USA INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SMITH INTERNATIONAL, INC.
Priority to JP1069114A priority patent/JPH0328489A/ja
Assigned to COOPER INDUSTRIES, INC. reassignment COOPER INDUSTRIES, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CAMERA IRON WORKS USA, INC., A CORP OF DE
Assigned to COOPER CAMERON CORPORATION reassignment COOPER CAMERON CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COOPER INDUSTRIES, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F16L1/26—Repairing or joining pipes on or under water
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • E21B43/013—Connecting a production flow line to an underwater well head
    • E21B43/0135—Connecting a production flow line to an underwater well head using a pulling cable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/002—Couplings of the quick-acting type which can be controlled at a distance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear

Definitions

  • This invention relates to the remote connection of underwater flow lines, hydraulic control lines and electrical conduits to a subsea production unit such as an underwater Christmas tree or underwater manifold center without the use of divers, and more particularly to protective devices for the hubs of the flow lines, control lines or conduits to be conected.
  • the present invention provides a temporary hub cover for the hubs of flow lines, hydraulic lines, and electrical conduits and the mating hubs of the underwater production unit.
  • the hub cover includes a body enclosing the hub, plungers within the body for releasably engaging into detents on the hub to hold the cover on the hub, and a trigger mechanism operable from a remote location to release the engagement between the cover and hub whereby the cover can be removed from the hub.
  • FIG. 1 is a schematic view showing the environment of the invention and the pulling of the flow line bundle by the pull-in tool with the end of the flow line hub shown partly in section;
  • FIG. 2 is a perspective view of the pull-in tool shown in FIG. 1;
  • FIG. 3 is an elevation view of the protective cover used on the hubs according to the invention.
  • FIG. 4 is a vertical section view of the protective cover taken at line 4--4 of FIG. 3;
  • FIG. 5 is a fragmentary section view taken at line 5--5 of FIG. 3;
  • FIG. 6 is a fragmentary section view taken at line 6--6 of FIG. 3;
  • FIG. 7 is a section view of the cover mounted on the hub taken at line 7--7 of FIG. 3;
  • FIG. 8 is an elevation view of the connecting tool used to remove the protective covers and to engage the hubs when a seal is required.
  • the present invention is used in connecting flow lines, hydraulic control lines, and electrical conduits to underwater oil and gas production units by remote operation.
  • the method by which the hubs are disposed at a remote location for sealing connection is not of import to the present invention.
  • the pull-in method and lay away method will be described. Referring initially to FIG. 1 illustrating the lay away method, a floating vessel A has a pull-in tool 10 which has been lowered to the production unit 12 on the ocean floor 14, and a second vessel B has a flow line bundle 16 to be lowered to the ocean floor 14 for connection to production unit 12. Pull-in tool 10 is attached to flow line bundle 16 by a cable 18 extending from vessel A to vessel B.
  • Tool 10 includes a hydraulic cable puller 20 to retrieve cable 18 and flow line bundle 16 by using the cable to pull bundle 16 toward production unit 12 as bundle 16 is lowered from vessel B to the ocean floor 14.
  • the flow line bundle 16 and flow lines may be laid at any time.
  • cable 18 is connected to the flow line bundle 16 and either buoyed at the surface or released at a later time by a sonar recall buoy.
  • the cable 18 is retrieved and keel-hauled beneath vessel A for connection to the pull-in tool 10.
  • Pull-in tool 10 is then lowered to production unit 12 and locked into place.
  • a wireline dart is run down through the drill pipe to latch onto the end of the cable 18 and raised to the surface to begin pulling in flow line bundle 16. Pull-in retrieval and connection operations then proceed as described below with respect to the lay away method.
  • Flow line bundle 16 includes a bull nose 22 which cooperates with a latch 24 mounted on pull-in tool 10. Cable 18 guides bull nose 22 into latching engagement with latch 24, and alignment means 26 on tool 10 aligns flow bundle 16 with production unit 12. Once flow line bundle 16 is aligned, it is locked into place and pull-in tool 10 is unsecured from production unit 12 and retrieved by vessel A.
  • Flow line bundle 16 includes one or more flow lines 28, 29 extending to vessel B, a hub 50 with a protective cover 52, and a pull-in adapter 30 having bull nose 22.
  • Production unit 12 includes a mating hub 40 with cover 42 for fluid connection to hub 50.
  • a connection tool 60 shown in FIG. 8 is lowered from vessel A to remove protective covers 42, 52 attached to hubs 40, 50 respectively, insert a seal plate 36 between hubs 40, 50, move hubs 40, 50 together to sandwich seal plate 36 therebetween, and connect hubs 40, 50 together using clamping means 38.
  • Production unit 12 may include a Christmas tree or an underwater manifold center where oil and gas are collected from numerous wells, and may include one or more hubs for connection to a plurality of different flow lines, hydraulic control lines, and electrical conduits.
  • underwater production unit 12 includes a base 32, a porch 44 having a ramp 46, and inboard hub 40 in fluid communication with flow lines 61, 62 from either a Christmas tree or a manifold center.
  • the inboard hub 40 has a sealing face 48, a cylindrical bearing 54 and an intermediate collar 56.
  • Bearing 54 is slideably received within a bearing housing 58 which is longitudinally slideably supported on production unit 12.
  • Inboard hub 40 is connected to loops on flow lines 61, 62.
  • Porch 44 supports the flow line bundle 16 while it is aligned.
  • Ramp 46 extends outwardly and downwardly to the ocean bottom 14 and guides flow line bundle 16 onto porch 44.
  • Other hubs and ramps may be mounted on production unit 12 for connection to hydraulic control lines and/or electrical conduits.
  • Pull-in tool 10 includes a run-in tool 80 shown in FIG. 2, alignment means 26, latch 24, and hydraulic cable puller 20. Pull-in tool 10 is lowered to the ocean bottom 14 using drill pipe 64 and is guided onto guide posts 66 of base 32 by guidelines 68 extending to the surface.
  • Run-in tool 80 includes guide tubes 70 which telescope over guide posts 66.
  • Hydraulic lock down apparatus 72 provided on run-in tool 80, hydraulically actuates a pin 74 which pins guide tubes 70 to guide posts 66.
  • Latch 24 on pull-in tool 10 has a generally cylindrical housing with a front opening 82 for receiving bull nose 22 on flow line bundle 16.
  • a plurality of latch jaws 84 are pivotally mounted in the housing and swing into engagement behind annular shoulder 86 on bull nose 22 for securing bull nose 22 within latch 24.
  • Latch 24 includes a spring actuated orientation pin 85 which engages an alignment slot (not shown) in plate 88 of pull-in adapter 30.
  • Orientation device 26 orients latch 24 with bull nose 22 by longitudinal and rotational movement. Upon proper alignment of bull nose 22 and bull nose latch 24, hub 50 on flow line bundle 16 is properly aligned with inboard hub 40 for sealing and connection.
  • Cable 18 extends from vessel A passing through drill pipe 64, orientation device 26, and bull nose latch 24 for connection to bull nose 22.
  • Flow lines 28, 29 terminate in lock down apparatus 92 which is permanently fastened to the ends of flow lines 28, 29 and to hub 50.
  • Flow line hub 50 is carried within a protective cage 90 comprising a box-like structure which may be covered on the bottom by a hinge cover, and plate 88 is provided with an alignment slot in its upper edge for alignment with orientation pin 85 on latch 24.
  • Pull-in adapter 30 with plate 88 and bull nose 22, cage 90, and part of lock down apparatus 92 are removably connected to hub 50 and flow lines 28, 29 for retrieval from the surface.
  • Protective covers 42, 52 for inboard hub 40 and outboard hub 50 are substantially the same and a description of cover 52 will be descriptive of cover 42.
  • hub 50 includes a sealing face 100 and a collar 102 between sealing face 100 and the lock down apparatus 92 shown in FIG. 1.
  • Protective cover 52 is releasably attached to hub 50 and comprises a body 104 having a U-shaped cavity 106 configured to receive head 108 of hub 50.
  • Cavity 106 includes a U-shaped groove 110 creating annular shoulder 112 for mating with annular shoulder 113 on hub 50 created by head 108.
  • Cover 52 is assembled onto hub 50 by inserting head 108 through the open end of cavity 106.
  • the mating shoulders 112, 113 prevent head 108 from being pulled out of cavity 106 except by sliding it back through the open end of cavity 106.
  • Cone ended detent plungers 130 hereinafter described with reference to FIG. 5, prevent the hub 50 from sliding out of cavity 106 through its open end after hub 50 has been inserted into cavity 106.
  • a protective plate 114 is housed within cavity 106 to engage the sealing face 100 of hub 50 to prevent damage to it.
  • Plate 114 is made of a relatively soft, preferably plastic material, such as "Delrin” manufactured by E. I. duPont de Nemours of Wilmington, Del. Plate 114 is fastened to body 104 of hub cover 52 by means of fastening assemblies 116 shown in FIG. 6.
  • fastening assemblies 116 include a rod 118, screw 120, and spring 122.
  • Rod 118 is inserted into aperture 124 having a reduced diameter portion 126.
  • Rod 118 has a head 128 engageable with one side of reduced diameter portion 126.
  • Plate 114 is secured to other end of rod 118 by screw 120 passing through aperture 121 in plate 114 and threadingly engaging tapped hole 123 in rod 118.
  • Spring 122 is housed in aperture 124 and is biased between plate 114 and the other side of reduced diameter portion 126.
  • protective plate 114 is biased into engagement with the face 100 of hub 50 by means of spring 122.
  • a tapped bore 125 is provided in the head 128 of rod 118 for connecting a threaded device (not shown) to rod 118 to retract plate 114 during assembly of hub 50 within cavity 106.
  • Protective cover 52 is held in place on hub 50 by means of a pair of detent plungers 130 shown in FIG. 5.
  • Detent plungers 130 are made of soft metal and aligned so that they will not drag on or scratch the sealing surface 100 of hub 50.
  • Each of the detent plungers 130 is secured within a tube 132 which is secured in position as described hereinafter.
  • Tube 132 is positioned so that detent plunger 130 passes through apertures 131 in protective plate 114 and engages a detent recess 135 in the face 100 of hub 50.
  • Tube 132 is housed in aperture 137 having a reduced diameter portion 139 for slidingly receiving tube 132.
  • the reduced diameter portion 139 creates an annular shoulder 141 for engaging the washer 143 around the nut 145 threaded onto the end of detent plunger 130.
  • the aperture 137 in body 104 has a counterbore portion 147 for receiving a second washer 149 attached to cover body 104 by screws 151.
  • Second washer 149 has a hole to permit access to nut 145 for adjustment of detent plunger 130.
  • tube 132 has an annular groove 136 around its outer periphery for matching alignment with a longitudinal bore 140 passing through the length of cover body 104.
  • a rod 142 is received within bore 140 and includes a reduced diameter portion 144 located in position just above tube 132 as shown in FIGS. 3 and 4.
  • Groove 136 receives a portion of the body of rod 142 in the position shown in FIG. 3 so that rod 142 holds tube 132 and therefore detent plunger 130 in position within hub detent recess 135.
  • Rod 142 is held in its uppermost position as shown in FIGS. 3 and 4 by shear pin 146 which engages a second reduced diameter portion 148 in rod 142.
  • Rods 142 are attached to a trigger plate 150 housed in a recess in the upper portion of cover body 104 and flush with the top of cover 52 whereby upon the application of a downward force on trigger plate 150 by buttons 170 of connector tool 60 shown in FIG. 8, shear pins 146 are sheared to permit rod 142 to move downwardly so that reduced diameter portion 144 is located opposite groove 136 in detent tube 132.
  • annular seal plate 180 is housed in counterbore 188 in body 104 and sealingly engages and circumscribes flow ports 182, 183 corresponding with flow lines 29, 28.
  • An annular seal ring 184 housed in annular groove 186 in seal plate 180, sealingly engages the face 100 of hub 50 around flow port 182.
  • Seal plate 180 is permitted reciprocal movement within counterbore 188.
  • Springs 190 housed in mating counterbores in seal plate 180 and body 104 bias seal plate 180 into sealing engagement with face 100 of hub 50.
  • a groove 192 housing an annular seal member 194 for sealing engagement around the inner surface forming counterbore 188.
  • a bolt 196 passing through bore 198 in body 104 and through bore 199 in seal plate 180, fastens seal plate 180 to body 104.
  • Bore 199 is sufficiently larger than the cross-sectional area of bolt 196 to permit the passage of fluids.
  • a seal plate 180, 181 is provided for each flow bore 182, 183 as illustrated in FIG. 3 permitting a fluid pressure seal to be used in seal testing and flow line cleaning.
  • Flow ports 202 and 204 extending longitudinally through cover body 104 provide fluid communication between flow lines 28, 29 to permit fluid pressure to be applied through one flow line and return through the other flow line to permit seals to be tested.
  • a lead nosed pig may be run through one of the flow lines for engagement with the end of bolt 196 and returned by reversing the fluid pressure in the flow lines 28, 29 and flow ports 202, 204 to remove any debris in the lines and check that no obstructions exist.
  • flow line connector running tool 60 is lowered into place by means of a drill pipe running string 160.
  • Tool 60 is guided into proper position by means of guide tubes 162 which follow guide posts 66 and guide lines 68 on base 32.
  • Flow line connector running tool 60 has a frame 164 on which is moveably mounted two fork members 166, 168.
  • Forks 166, 168 are hydraulically mounted on frame 164 for lateral movement and each has a slot for receiving bearing housings 54, 51 of hubs 40, 50 respectively.
  • Flow line connector tool 60 also includes clamping means 38 and seal plate 36.
  • Seal plate 36 is supported between the two halves of clamping means 38 whereby as tool 60 is lowered into position, the lower half of clamping means 38 passes between hubs 40, 50.
  • buttons 170 engage trigger plate 150 on covers 42, 52 thereby releasing protective covers 42, 52 and causing them to drop off inboard and outboard hubs 40, 50 onto the ocean floor. Seal plate 36 is then aligned between hubs 40 and 50.
  • the two halves of clamp assembly 38 are then moved together by the rotation of a hexagon socket which is driven by motors and a gear box clamping the facing hubs 40, 50 into sealing engagement with the seal member 36.
  • Hydraulic pressure is then applied to release the latch members and the connector running tool 60 is then hoisted upwardly by means of drill pipe 160 to be retrieved by vessel A.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Light Guides In General And Applications Therefor (AREA)
US06/098,965 1978-12-28 1979-11-30 Protective cover for underwater flow line hub Expired - Lifetime US4371005A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US06/098,965 US4371005A (en) 1978-12-28 1979-11-30 Protective cover for underwater flow line hub
GB8025628A GB2064039A (en) 1979-11-30 1980-08-06 Protective cover for underwater flowline hub
CA361,650A CA1134264A (fr) 1979-11-30 1980-10-07 Couvercle de protection pour raccord de conduite d'ecoulement
FR8022478A FR2470910A1 (fr) 1979-11-30 1980-10-21 Appareil de branchement a distance de deux moyeux sous-marins alignes axialement et couvercle provisoire pour ces moyeux
JP15200080A JPS5695900A (en) 1979-11-30 1980-10-29 Protective cover for underwater fluid pipe hub
DE19803044943 DE3044943A1 (de) 1979-11-30 1980-11-28 Zeitweilige muffenabdeckung fuer unterwasserverwendung
US06/429,532 US4477205A (en) 1979-11-30 1982-09-30 Apparatus for connecting underwater flow line hubs
GB08324823A GB2136083B (en) 1979-11-30 1983-09-16 Protective cover for underwater flowline hub
JP1069114A JPH0328489A (ja) 1979-11-30 1989-03-20 海中流体管ハブの連結装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97389578A 1978-12-28 1978-12-28
US06/098,965 US4371005A (en) 1978-12-28 1979-11-30 Protective cover for underwater flow line hub

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US97389578A Continuation-In-Part 1978-12-27 1978-12-28

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US06/429,532 Division US4477205A (en) 1979-11-30 1982-09-30 Apparatus for connecting underwater flow line hubs

Publications (1)

Publication Number Publication Date
US4371005A true US4371005A (en) 1983-02-01

Family

ID=22271763

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/098,965 Expired - Lifetime US4371005A (en) 1978-12-28 1979-11-30 Protective cover for underwater flow line hub

Country Status (6)

Country Link
US (1) US4371005A (fr)
JP (2) JPS5695900A (fr)
CA (1) CA1134264A (fr)
DE (1) DE3044943A1 (fr)
FR (1) FR2470910A1 (fr)
GB (2) GB2064039A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558972A (en) * 1983-05-27 1985-12-17 Shell Oil Company Subsea pipeline connection
US4693278A (en) * 1986-11-10 1987-09-15 T. D. Williamson, Inc. Safety closure member
US5983822A (en) * 1998-09-03 1999-11-16 Texaco Inc. Polygon floating offshore structure
US6230645B1 (en) 1998-09-03 2001-05-15 Texaco Inc. Floating offshore structure containing apertures
US20110005764A1 (en) * 2007-12-21 2011-01-13 Fmc Kongsberg Subsea As Tool for connecting pipelines
WO2016083218A1 (fr) * 2014-11-24 2016-06-02 Vetco Gray Scandinavia As Agencement d'accouplement sous-marin

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204116A1 (de) * 1982-02-06 1983-08-11 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Mehrfachkupplung mit sperrkugelverriegelung

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB757280A (en) * 1953-08-31 1956-09-19 Siemens Ag Improvements in or relating to an arrangement for sealing a joint between two substantially plane abutting surfaces
US2997070A (en) * 1960-04-01 1961-08-22 James E Penhale Hydrostatic testing tool with automatic dump valve
US3701261A (en) * 1971-02-08 1972-10-31 Brown & Root Apparatus for providing offshore installation
US3766947A (en) * 1972-06-05 1973-10-23 Williamson Inc T Fluid tight closure
US3795115A (en) * 1972-09-05 1974-03-05 Lockheed Petroleum Services Method and apparatus for joining subsea pipelines
US3837685A (en) * 1973-01-02 1974-09-24 J Miller Pipe expansion and repair fitting
US3967462A (en) * 1975-03-10 1976-07-06 Lockheed Petroleum Services Ltd. Method and apparatus for joining a subsea pipeline to an offshore platform riser
US3968838A (en) * 1973-08-07 1976-07-13 Vetco Offshore Industries, Inc. Underwater connection apparatus
US4004635A (en) * 1974-04-05 1977-01-25 Subsea Equipment Associates Limited Method for connecting a submerged well head to a pipe consisting of steel tubes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019334A (en) * 1976-03-17 1977-04-26 Exxon Production Research Company Method and apparatus for making subsea pipe connections
US4086778A (en) * 1977-01-06 1978-05-02 Mobil Oil Corporation Subsea connection unit
GB1596782A (en) * 1977-02-26 1981-08-26 Fmc Corp Method and apparatus for completing diverless subsea flowline connections
US4329085A (en) * 1978-12-27 1982-05-11 Smith International, Inc. Connection of underwater lines
GB2038973A (en) * 1978-12-28 1980-07-30 Mcevoy Oilfield Equipment Co Connection of underwater lines

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB757280A (en) * 1953-08-31 1956-09-19 Siemens Ag Improvements in or relating to an arrangement for sealing a joint between two substantially plane abutting surfaces
US2997070A (en) * 1960-04-01 1961-08-22 James E Penhale Hydrostatic testing tool with automatic dump valve
US3701261A (en) * 1971-02-08 1972-10-31 Brown & Root Apparatus for providing offshore installation
US3766947A (en) * 1972-06-05 1973-10-23 Williamson Inc T Fluid tight closure
US3795115A (en) * 1972-09-05 1974-03-05 Lockheed Petroleum Services Method and apparatus for joining subsea pipelines
US3837685A (en) * 1973-01-02 1974-09-24 J Miller Pipe expansion and repair fitting
US3968838A (en) * 1973-08-07 1976-07-13 Vetco Offshore Industries, Inc. Underwater connection apparatus
US4004635A (en) * 1974-04-05 1977-01-25 Subsea Equipment Associates Limited Method for connecting a submerged well head to a pipe consisting of steel tubes
US3967462A (en) * 1975-03-10 1976-07-06 Lockheed Petroleum Services Ltd. Method and apparatus for joining a subsea pipeline to an offshore platform riser

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Deep Water Production Without Divers", Offshore Services, Jan. 1978, pp. 26-31, 34. *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558972A (en) * 1983-05-27 1985-12-17 Shell Oil Company Subsea pipeline connection
US4693278A (en) * 1986-11-10 1987-09-15 T. D. Williamson, Inc. Safety closure member
US5983822A (en) * 1998-09-03 1999-11-16 Texaco Inc. Polygon floating offshore structure
US6230645B1 (en) 1998-09-03 2001-05-15 Texaco Inc. Floating offshore structure containing apertures
US20110005764A1 (en) * 2007-12-21 2011-01-13 Fmc Kongsberg Subsea As Tool for connecting pipelines
US8794336B2 (en) * 2007-12-21 2014-08-05 Fmc Kongsberg Subsea As Tool for connecting pipelines
WO2016083218A1 (fr) * 2014-11-24 2016-06-02 Vetco Gray Scandinavia As Agencement d'accouplement sous-marin

Also Published As

Publication number Publication date
JPH0328489A (ja) 1991-02-06
GB8324823D0 (en) 1983-10-19
GB2064039A (en) 1981-06-10
JPH0355639B2 (fr) 1991-08-23
JPS5695900A (en) 1981-08-03
JPH0218478B2 (fr) 1990-04-25
FR2470910A1 (fr) 1981-06-12
GB2136083A (en) 1984-09-12
FR2470910B1 (fr) 1984-06-29
CA1134264A (fr) 1982-10-26
GB2136083B (en) 1985-03-13
DE3044943A1 (de) 1981-06-19
DE3044943C2 (fr) 1991-05-02

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